package memtest;


public class MemTest {

    public static void main(String[] args) {

        long totalMem = 7935800l;
        long freeMem = 616084l;
        long cachedMem = 4013008l;
        System.out.println(Math.round(((float) (totalMem - freeMem - cachedMem) / totalMem) * 100));
    }
}